EP1502146B1 - Optischer abreissstapel mit umfangsversiegelungsanbringung - Google Patents

Optischer abreissstapel mit umfangsversiegelungsanbringung Download PDF

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Publication number
EP1502146B1
EP1502146B1 EP02806423A EP02806423A EP1502146B1 EP 1502146 B1 EP1502146 B1 EP 1502146B1 EP 02806423 A EP02806423 A EP 02806423A EP 02806423 A EP02806423 A EP 02806423A EP 1502146 B1 EP1502146 B1 EP 1502146B1
Authority
EP
European Patent Office
Prior art keywords
lens
adhesive
stack
optical
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02806423A
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English (en)
French (fr)
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EP1502146A2 (de
EP1502146A4 (de
Inventor
Stephen S. Wilson
Seth Wilson
Bart Wilson
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Individual
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Individual
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Publication date
Priority claimed from US10/039,519 external-priority patent/US6536045B1/en
Application filed by Individual filed Critical Individual
Publication of EP1502146A2 publication Critical patent/EP1502146A2/de
Publication of EP1502146A4 publication Critical patent/EP1502146A4/de
Application granted granted Critical
Publication of EP1502146B1 publication Critical patent/EP1502146B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/26—Visors with cleaning means, e.g. wipers ; Movable or interchangeable vision films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/025—Special attachment of screens, e.g. hinged, removable; Roll-up protective layers

Definitions

  • the present invention generally relates to the field of eye protectors or face shields having a lens cover plate, and in particular to peripheral seal mounts for a tear-off stack of laminated removable lens covers adhered to face shields and the like.
  • face shields are worn by physicians working in the operating room. They are sometimes worn by those playing games where injury to the eyes may occur.
  • Paint Ball contestants employ weapons that fire at one another pellets or balls of paint as ammunition. When a ball of paint strikes a participant, it becomes readily apparent that they have been hit by a "tell-tale" blotch of paint. Obviously, it is desirable for contestants to wear some form of protection over their face and eyes.
  • any face protection lens being worn will become covered with contaminants, which obscures the view.
  • the solution would appear to be to simply clean off the lens. This is not always an option, especially for a physician performing an operation who cannot stop for such cleaning.
  • An example of a recent solution to a similar problem is the use of a multi-ply transparent lens over goggles in order to facilitate rapid removal of dirt or grime in contaminated environments. That is, when the goggles become contaminated, a single layer of the multi-ply transparent lens is removed. The goggles are now clean and when they again become contaminated another layer of the multi-ply transparent lens is removed. This process can be repeated many times, depending upon the number of layers applied to the goggles.
  • the adhesive is omitted from the bottom-most layer, then we are back to the original refraction problem of an air gap between the eye-protector lens and the bottom-most layer of the multi-ply transparent lens.
  • the adhesive layer is removed from the interface between the bottom-most layer of the multi-ply stack and the lens of the face protector, then there remains the problem with the lens fogging up in the presence of moisture.
  • a feature of the present invention is the use of selective areas of adhesive around the periphery of the bottom-most layer of a multi-ply transparent optical lens stack for attachment to a large area face protector.
  • Another feature of the present invention is a method for the removal of a peripheral race around the edges of the bottom-most layer of a multi-ply transparent lens stack, thereby exposing adhesive around the periphery only.
  • the peripheral adhesive area may then be used for affixing the multi-layer transparent lens to the face protector.
  • the central area of the bottom-most layer of the multi-ply transparent lens remains in place, thereby avoiding the bubble problem.
  • the adhesive on the periphery solves the fogging up problem by sealing out any moisture.
  • Yet another feature of the present invention is an alternate method of forming the adhesive strip by applying a thin strip of adhesive directly to the bottom-most lens of the optical stack around the periphery thereof.
  • Still another feature of the present invention is the provision of an optical stack of removable lenses that may be used for windshields of vehicles, windows of all types, or video displays.
  • an optical stack of laminated removable lenses that may be affixed to a face shield.
  • the stack includes a plurality of superposed removable lenses adhesively affixed to one another, wherein each of the removable lenses is held to each successive lens with a clear uninterrupted adhesive layer interposed between each lens.
  • Each of the lens has a removal tab portion on one end which does not have any adhesive layer on either side thereof. This allows the wearer of the face shield to quickly grasp the removal tab portion for removing the top lens and exposing a clean lens directly underneath.
  • the bottom-most removable lens of the stack has a band of adhesive formed around the periphery thereof for attachment of the stack to the face shield. The band of adhesive forms a seal which eliminates any moisture from the interface between the bottom-most lens and the shield.
  • the face protector may include an adjustable headband 11 and a frontal member 12 for supporting a lens 13.
  • the frontal member 12 and lens 13 may be adjusted at an angle with the headband 11.
  • Adjustment knobs 14 and 15 are available for holding the member 12 and lens 13 at the desired angle.
  • the lens optical stack 16 is made and attached to the lens 13 according to the teachings of the present invention, amplified herein below.
  • the lens optical stack 16 preferably includes tabs 17, which are employed by a wearer for removal of an individual layer of the lens optical stack 16. It is preferable that the removal tabs 17 do not have any adhesive on either side thereof so that a user will not pick up the adhesive on their fingers or gloves (if worn).
  • the lens optical stack 16 becomes contaminated and blocks the user's view, then one simply reaches up and grabs an individual tab 17 and peels off an outer layer of the lens optical stack 16. This process may be repeated as many times as there are layers in the lens optical stack 16.
  • FIG. 3 a partially exploded view of the multi-ply transparent optical stack 16 is shown.
  • This figure illustrates removable Mylar lenses or film layers 30, 32, 34, 36 ... alternating with adhesive layers 31, 33, 35 .... That is, the film layer 30 is held to the film layer 32 by the clear uninterrupted adhesive layer 31 interposed there between. The next film layer 34 is held to the film layer 32 by interposing the adhesive layer 33 there between, and so forth for formation of the entire lens optical stack 16.
  • the preferred material used to form the film layers 30, 32, 34, etc. is preferably a clear polyester.
  • the layers are preferably fabricated from sheets of plastic film sold under the registered trademark Mylar owned by the DuPont Company and more particularly a type of Mylar made from a clear polymer polyethylene terephalate, commonly referred to as PET.
  • the preferred adhesive layers 31, 33, 35 etc. used to laminate the lenses together sequentially is a clear optical low tack material.
  • the thickness of each film layer typically ranges from .5 mil to 7 mil (1 mil is .001"). The preferred thickness is 2 mil. Even after the adhesive material is applied to a 2 mil thickness layer, the thickness of the 2 mil thickness layer will still be 2 mil due to the adhesive film layer having only a nominal thickness.
  • the adhesive material 20 comprises a water based acrylic optically clear adhesive or an oil based clear adhesive, with the water based adhesive being the preferred embodiment.
  • the thickness of each adhesive layer is negligible even though the adhesive layers are illustrated in as distinct layers.
  • a preferred adhesive layer/film layer construction is disclosed in our pending application serial no. 09/449,318 filed November 24, 1999 entitled Optical Stack of Laminated Removable Lenses for Face Shields, Windows, and Displays, published as US6388813.
  • a cut is made around the periphery of the bottom-most film layer 30, thereby exposing a narrow strip 20 of the adhesive layer 31.
  • the strip 20 is used for adhesively affixing the optical stack 16 to the face protector 10. It is preferable to make the peripheral cut after the optical stack 16 is assembled into the multiple alternating layers in order to maintain proper registration of the individual layers.
  • the narrow strip 20 may be applied separately to the bottom most film layer 30 as well.
  • FIG 4 a partial cross-sectional view taken along line 4-4 of Figure 3 illustrates a detail of alternating film layers 30, 32, 34, 36 ..., with the adhesive layers 31, 33, 35, ... interposed between each the film layers.
  • the peripheral cut exposing the strip 20 only removes a portion of the bottom-most film layer 30.
  • This narrow peripheral strip 20 is preferably 1 ⁇ 8" to 1 ⁇ 2" in width, or wider. The more narrow the strip the more likely the stack will not stay in place on the face protector and the wider the strip the more likely the bubble problem, discussed above, will occur.
  • the preferred width is as stated above, i.e., 1 ⁇ 8" to 1 ⁇ 2" in width.
  • the multiply transparent optical stack 16 of the present invention can be easily applied to any desired face protector 10 by positioning the bottom-most film layer 30 having the narrow strip 20 of adhesive layer disposed about the periphery thereof adjacent to the front surface of the face protector. A user may then press the narrow strip 20 of the adhesive layer 31 against the outer surface of the face protector 10 causing the stack to be rapidly mounted thereto.
  • the narrow strip 20 is attached to the face protector 10 adjacent one end thereof and subsequently spread or pressed tightly against the front surface of the face protector 10.
  • air bubbles or the like are not presented at the interface of the optical stack 16 and the face protector 10.
  • the optical stack 16 has adhesive layers there between, reflection between the film layers 30 is substantially reduced.
  • the user may quickly remove the upper most film layer from the stack exposing a clean film layer there below.
  • the present invention allows an effective optical stack to be rapidly deployed upon any optical surface and be rapidly used by a user.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)
  • Packages (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Led Device Packages (AREA)

Claims (11)

  1. Optischer Stapel (16) aus laminierten abziehbaren Linsen zum Aufkleben auf einem Gesichtsschutzschild, welcher umfasst:
    (a) eine Vielzahl von übereinander gestapelten abziehbaren Linsen (30,32,34,36,...), welche klebend aneinander gefügt sind;
    (b) wobei jede abziehbare Linse an jeder nachfolgenden Linse mit einer durchsichtigen ununterbrochenen Klebeschicht (31,33,35,...) befestigt ist, welche zwischen jeder abziehbaren Linse aufgebracht ist;
    (c) wobei jede Linse einen Abziehlaschenabschnitt (17) an zumindest einem Ende aufweist, und wobei der Abziehlaschenabschnitt auf beiden Seiten keine Klebeschicht aufweist, um den Träger des Gesichtsschutzschilds zu ermöglichen, schnell den Abziehlaschenabschnitt zu greifen, zum Abziehen der obersten Linse, und zum Freilegen einer sauberen Linse direkt unterhalb der abgezogenen obersten Linse; gekennzeichnet durch:
    (d) eine unterste abziehbare Linse (30) des Stapels mit einem Klebeband (20), ausgebildet entlang des Umfangs der Linse zum Befestigen des Stapels an dem Gesichtsschutzschild, wobei das Klebeband eine Dichtlippe bildet, und dadurch jede Feuchtigkeit von der Verbindungsfläche zwischen der untersten Linse und dem Gesichtsschutzschild fernhält.
  2. Optischer Stapel gemäß Anspruch 1, wobei das Klebeband (20) gebildet wird, indem ein Schnitt in die Tiefe der untersten Linse (30) eingebracht wird, innerhalb des Umfangs und entlang der Linsenform, wodurch der äußerste, gewöhnlich ringförmige Abschnitt dann abgetrennt wird, und wobei dadurch der Kleber der vorherigen Schicht freigelegt wird, welcher dazu beiträgt, die Linse an dem Gesichtsschutzschild zu befestigen.
  3. Optischer Stapel gemäß Anspruch 1, wobei das Klebeband (20) an dem Umfang der untersten Linse angebracht ist.
  4. Optischer Stapel gemäß Anspruch 1, wobei die abziehbaren Linsen und die durchsichtigen Klebeschichten einen Brechungsindex zwischen 1,4 und 1,52 aufweisen.
  5. Optischer Stapel (16) aus abziehbaren Linsen zum Aufkleben auf einem optischen Fenster, welcher umfasst:
    (a) eine Vielzahl von gewöhnlich rechteckigen, übereinander gestapelten, abziehbaren Linsen (30,32,34,36,...), welche klebend aneinander gefügt sind, um den optischen Stapel zu bilden;
    (b) wobei jede abziehbare Linse an jeder nachfolgenden Linse mit einer durchsichtigen ununterbrochenen Klebeschicht (31,33,35,...) befestigt ist, welche zwischen jeder abziehbaren Linse aufgebracht ist;
    (c) eine Vielzahl von versetzt angeordneten Laschen (17), welche von einer Ecke von jeder der Filmschichten abstehen, wobei die Laschen zur Unterstützung angebracht sind, um zu ermöglichen, dass jede Filmschicht nacheinander abgezogen wird; und
    (d) wobei die unterste abziehbare Linse (30) des Stapels ein Klebeband (20) aufweist, welches entlang des Umfangs davon ausgebildet ist, um den Stapel an dem optischen Fenster zu befestigen, wobei das Klebeband eine Dichtlippe bildet, und dadurch Feuchtigkeit von der Verbindungsfläche zwischen der untersten Linse und dem optischen Fenster fernhält.
  6. Optischer Stapel gemäß Anspruch 5, wobei das optische Fenster, an welchem der Stapel aus abziehbaren Linsen befestigt ist, umfasst, ein Windschutzschild, ein Fenster, ein Gesichtsschutzschild oder ein Videodisplay.
  7. Optischer Stapel gemäß Anspruch 5, wobei das Klebeband (20) ausgebildet wird, indem ein Schnitt in die Tiefe der untersten Linse (30) eingebracht wird, innerhalb des Umfangs und entlang der Linsenform, wobei der äußerste, gewöhnlich ringförmige Abschnitt dann entfernt wird, und wobei dadurch der Klebstoff der vorherigen Schicht freigelegt wird, welcher dazu beiträgt, die Linse an dem optischen Fenster zu befestigen.
  8. Optischer Stapel gemäß Anspruch 5, wobei das Klebeband (20) an dem Umfang der untersten Linse (30) angebracht ist.
  9. Optischer Stapel gemäß Anspruch 5, wobei die abziehbaren Linsen und die durchsichtigen Klebeschichten einen Brechungsindex zwischen 1,4 und 1,52 aufweisen.
  10. Optischer Stapel gemäß Anspruch 5, wobei die Laschen (17) keinen darauf aufgebrachten Klebstoff aufweisen.
  11. Verfahren zum Bilden eines Stapels (16) aus optischen Linsen zur Befestigung an einem optischen Fenster, wobei das Verfahren die nachfolgenden Schritte umfasst:
    (a) das Aufeinanderlaminieren einer Vielzahl von Schichten (30,32,34,36,...) aus optischen Linsen, indem eine durchsichtige, ununterbrochene Klebeschicht (31,33,35,...) zwischen jede Schicht aus einer optischen Linse, welche laminiert wird, aufgebracht wird;
    (b) das Bilden einer Laschenerweiterung (17) bei jeder Schicht aus einer optischen Linse, und das Weglassen der Klebeschicht bei der Laschenerweiterung, wobei jede Linsenschicht einzeln abgezogen werden kann; und
    (c) das Schneiden entlang dem Umfang und in die Tiefe einer Lage aus einer optischen Linse der untersten Schicht (30) des optischen Stapels, wobei dadurch ein Klebestreifen (20) freigelegt wird, um den optischen Stapel (16) an dem optischen Fenster anzukleben.
EP02806423A 2002-01-03 2002-04-09 Optischer abreissstapel mit umfangsversiegelungsanbringung Expired - Lifetime EP1502146B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US39519 1997-03-03
US10/039,519 US6536045B1 (en) 1999-11-24 2002-01-03 Tear-off optical stack having peripheral seal mount
PCT/US2002/010971 WO2003060563A2 (en) 2002-01-03 2002-04-09 Tear-off optical stack having peripheral seal mount

Publications (3)

Publication Number Publication Date
EP1502146A2 EP1502146A2 (de) 2005-02-02
EP1502146A4 EP1502146A4 (de) 2005-04-20
EP1502146B1 true EP1502146B1 (de) 2006-07-05

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EP02806423A Expired - Lifetime EP1502146B1 (de) 2002-01-03 2002-04-09 Optischer abreissstapel mit umfangsversiegelungsanbringung

Country Status (5)

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EP (1) EP1502146B1 (de)
AT (1) ATE332510T1 (de)
AU (1) AU2002366993A1 (de)
DE (1) DE60213009T2 (de)
WO (1) WO2003060563A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025257620A1 (en) * 2024-06-10 2025-12-18 Thi Total Healthcare Innovation S.r.l. Protection lens for surgical use having removable layers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010044029A1 (en) * 2008-10-16 2010-04-22 Koninklijke Philips Electronics N.V. Imaging device and method
WO2016089695A1 (en) 2014-12-05 2016-06-09 3M Innovative Properties Company Vision-protecting filter lens
US20170266929A1 (en) 2016-03-17 2017-09-21 Racing Optics, Inc. Rigid Display Shield
KR101882310B1 (ko) * 2016-04-22 2018-07-27 주식회사 오토스윙 투시창 보호용 투명필름시트가 결합된 안면 보호구
DE102018210680A1 (de) * 2018-06-29 2020-01-02 Trumpf Laser Gmbh Optisches Element mit abziehbarer Schutzfolie

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US2511329A (en) * 1946-12-26 1950-06-13 Craig Edward Lens shield
US4076373A (en) * 1976-03-10 1978-02-28 E. D. Bullard Company Method of and means for shielding the lens of a face mask
US4138746A (en) * 1977-03-28 1979-02-13 Bergmann Donald W Face shield protective system and apparatus
US4716601A (en) * 1986-08-05 1988-01-05 Scott Usa Limited Partnership, A Washington Limited Partnership Tear-off lens system and method for goggles
GB2269239A (en) * 1992-07-28 1994-02-02 Andrew Thomas Moore Protective visors for motor cycle helmet visors
US5671483A (en) * 1995-06-06 1997-09-30 Ontario Limited Removable subsidiary helmet face shield lens
US5592698A (en) * 1995-06-30 1997-01-14 Woods; Marlen M. Tear-off lens for transparent eye and face shield
CA2211755A1 (en) * 1997-05-27 1998-11-27 Kevin Cogan Vision enhancing tear off shield guards
US6388813B1 (en) * 1999-11-24 2002-05-14 Bart Wilson Optical stack of laminated removable lenses for face shields windows and displays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025257620A1 (en) * 2024-06-10 2025-12-18 Thi Total Healthcare Innovation S.r.l. Protection lens for surgical use having removable layers

Also Published As

Publication number Publication date
AU2002366993A1 (en) 2003-07-30
EP1502146A2 (de) 2005-02-02
WO2003060563A2 (en) 2003-07-24
ATE332510T1 (de) 2006-07-15
DE60213009T2 (de) 2007-02-01
WO2003060563A3 (en) 2004-11-18
DE60213009D1 (de) 2006-08-17
EP1502146A4 (de) 2005-04-20
AU2002366993A8 (en) 2003-07-30

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